Improvement in lamps



UNITED STATES PATENT OFFICEO AND ALFRED K. HILLS, OF SAME PLACE.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 52,369, dated January30, 1866.

To all whom it may concern:

Be it known that I, EDWARD F. ROGERS, of South Boston, of the county ofSuffolk and State of Massachusetts, have invented a new or ImprovedLamp; and I do hereby declare the same to be fully described in thefollowing specification and represented in the accompanyin g drawings,of which- Figure 1 is a top View, Fig. 2 a side elevation, and Fig. 3 avertical and transverse section, of it.

My said lamp is for vaporizing a hydrocarbon fluid and burning the vaporfor the purpose of obtaining light and heat therefrom.

1n the drawings, A denotes the lam p-burner,

provided with a wick-tube, a, and screwed into an annular cap, B, fittedto the neck of the reservoir or body (J, which is to contain the fluidto be burned.

On each side of the wick-tubethere is a tube or passage, cl, having itsupper end opening on a level with the top of the wick-tube. The lowerend of each tube d opens into the interior chamber of the burner, and bymeans of a hole, (1, made through the bottom of the burner, communicateswith the interior of a foraminous tube, 0, which extends down from thecap B to the bottom of the reservoir 0.

A wick-elevator, 0, may be applied to the wick-tube, such elevatorconsisting of a spurwheel mounted on a shaft which goes through and outof the burner, and is provided with a milled head, g.

The interior of the reservoir 0 is to be packed with sponge f whichshould surround the foraminous tube 6 and rest against itsouter'surface. The wick I) should descend into the tube c, and rest onthe bottom of the reservoir.

Preparatory to putting this lamp in operation, hydrocarbon fluid easilyvaporizable should be poured into the reservoir and on the sponge untilsuch sponge may be saturated with the liquid. The wick b should also besaturated with the liquid. Under these circumstances (the burner beingin place on the cap B) the wick should be inflamed on its top. In a fewmoments the heat absorbed from the flame by the burner will be conducteddown into the sponge by the foraminous tube 0. In consequence of thisthe liquid held in suspension by the sponge will be vaporized, and thevapor therefrom will pass through the holes of the tube e, and fromthence around into the burner, and escape by the tubes 61 d, which willdischarge the said vapor directly into or against the flame of the wick,Where it will be inflamed.

This lamp will burn with little or no smoke, and does not need a chimneyor a current-deflector, such as are required for most lamps for burningpetroleum or various other light burning-fluids.

The peculiar advantage of the sponge is that by capillary attraction itwill hold a large amount of the liquid against the outer surface of thetube 6, and in a manner to render such liquid easily vaporized. It alsoprevents the liquid from becoming spilled from the lamp in case of itsbeing overturned.

I claim as my invention 1. The combination and arrangement of one ormore vapor-ducts, (Z d, and the foraminous tube 6 withthe wick-tube aand the fluid-reservoir O.

2. The combination of the mass of sponge], or an equivalent absorbentmaterial, with the reservoir 0, the foraminous tube 0, the wicktube a,and one or more vapor-ducts, d d, the whole being arranged substantiallyin manner and so as to operate as specified.

E. F. ROGERS.

' Witnesses:

